what differen between http and https protocol ?

Question

some website opened with http protocal and some website opened with https (s suffix) what it means.

Answer 1

hi,

HTTPS is secured http protocol it run on TCP post 443. HTTP run on TCP port 80. HTTPS transfer encrypted data . HTTP is not encrypted.

Answer 2

https (Hypertext Transfer Protocol over Secure Socket Layer) is a URI scheme used to indicate a secure HTTP connection. It is syntactically identical to the http:// scheme normally used for accessing resources using HTTP. Using an https: URL indicates that HTTP is to be used, but with a different default TCP port (443) and an additional encryption/authentication layer between the HTTP and TCP. This system was designed by Netscape Communications Corporation to provide authentication and encrypted communication and is widely used on the World Wide Web for security-sensitive communication such as payment transactions and corporate logons.



Strictly speaking, https is not a separate protocol, but refers to the combination of a normal HTTP interaction over an encrypted Secure Sockets Layer (SSL) or Transport Layer Security (TLS) connection. This ensures reasonable protection from eavesdroppers and man-in-the-middle attacks.



An https: URL may specify a TCP port; if it does not, the connection uses port 443 (unsecured HTTP typically uses port 80).

Answer 3

HTTP - Hypertext Transfer Protocol

https (Hypertext Transfer Protocol over Secure Socket Layer) is a URI scheme used to indicate a secure HTTP connection. It is syntactically identical to the http:// scheme normally used for accessing resources using HTTP. Using an https: URL indicates that HTTP is to be used, but with a different default TCP port (443) and an additional encryption/authentication layer between the HTTP and TCP. This system was designed by Netscape Communications Corporation to provide authentication and encrypted communication and is widely used on the World Wide Web for security-sensitive communication such as payment transactions and corporate logons.

Answer 4

yap_jp has the best and most complete explanation of all.



Just a little to add to that.

The prefixes that you type into your browser "http" "https" "ftp" or others - are trying to tell the browser how to talk to the remote site -- they are names that represent the TCP port numbers -- that yap_jp referred to.



https = 443, http = 80, ftp =21



Effectively telling the browser what "language" to speak to the remote computer.



Summary answer is that https is more secure - you can "read" the information on the line with your eyes when using http. https requires substantial knowledge of encryption to read.

Nothing is ever 100% secure with respect to computers.

Answer 5

In http data transmissted through network is plain text and if anybody has captured your data packets can read the information contained in packet, information like username and password.

In https data transmitted is encrypted using some encryption algorithm so that your information is protected.All sites like yahoomail,orkut etc. has login page that use https protocol to protect login information by encrypting it.

Answer 6

https means secure. If u r making online transactions, always look for https.

Answer 7

having https in the url may not mean that site is secure. There may be still some un-secure connections..



Also, security certificate may be invalid etc etc.

Answer 8

's' suffix would mean the transmission is secured via some form of encryption or secured protocol like SSL.

Answer 9

https means it is secured.

Answer 10

and http means its not.